BGJAKEMY21
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Or AU$15.20 if you add shipping insurance.
Found a good review about it on a Russian website. Seems like a decent quality set for repairing small electronics.
Strong hardness, longer bits, magnetic case.
I recently purchased this, $17 del. with prime, recommend:
https://www.amazon.com.au/gp/product/B07CHG9CPT
(and it's actually S2 alloy, too)